Merge pull request #426 from SiaFoundation/release

chore: prepare release 0.22.0

Author: n8mgr

.changeset/add_rhp4_pool_rpc_handlers_and_renter_helpers.md

@@ -1,3 +1,19 @@
+## 0.22.0 (2026-05-12)
+
+### Breaking Changes
+
+#### Add RHP4 pool RPC handlers, renter helpers, and Contractor interface methods for shared balance pools.
+
+Hosts can now back accounts with shared balance pools so renters don't need to pre-fund and continually rebalance every account. A renter funds a pool once and attaches as many accounts as they want; debits drain the account's own balance first and fall through to attached pools, which keeps per-account allowances small and reduces the total capital sitting idle in account balances. This is the host-side companion to the new RHP4 pool RPCs.
+
+Extends the RHP4 `Contractor` interface with `PoolBalances`, `CreditPoolsWithContract`, `AttachPools`, and `DetachPools` (existing implementations must be updated). Adds host-side handlers for the new pool RPCs and renter-side helpers `RPCReplenishPools`, `RPCAttachPools`, and `RPCDetachPools`. `DebitAccount` semantics are extended to drain the account's own balance first, then attached pools in attachment order.
+
+### Fixes
+
+- Check downloaded data length in RPCReadSector before proof validation for a more meaningful error.
+- Fix incorrect v2 pool index.
+- Wrap client rpc errors in RPCError.
+
 ## 0.21.3 (2026-04-21)
 
 ### Fixes

.changeset/check_downloaded_data_length_in_rpcreadsector_before_proof_validation_for_a_more_meaningful_error.md

@@ -1,4 +1,4 @@
-module go.sia.tech/coreutils // v0.21.3
+module go.sia.tech/coreutils // v0.22.0
 
 go 1.26.0